Means for conducting static electricity from extractors



Dec. 6, 1927., 7 1,651,983 J. ZIMMERMAN ET AL.

MEANS FOR CONDUCTING STATIC ELECTRICITY FROM EXTRACTORS Filed May 13. 1927 ing clothes-container.

. of the extractor,

J Patented 6,1921

UNITED STATES Jqsnrfi zmimmnunun mime l en masseuse mare Application filed May 2 This invention relates to new and useful improvements-1n means electricity from extractors.

for conducting static It is the principal object to provide simple and readily attachable means for conducting static electricity from tractors in which an inflammable liquid removed by centrifugal force from the articles they contain. I

In cleaning establishments 1t frequently happens that the static electricity formed in an extractor will' ignite the inflammable liquid, to cause'a seriousfire. Our invention removes this danger by aiutorhaticallyrOnducting from the extractor, while it is 111 motion, any static electricity that .may be iol-med therein;

In the accompan ing drawings ill1 1'st1'&t-' ing our invention, igure 1 is a side view of -an' extractor equipped with our-means for conducting static electricity from the rotate Figure 2 is a. vertical taken through the upper part showing the conductor attached to the lid of the inner vessel. Figure '3 is a vertical sectional view. taken through the collector and conductor. And Figure 4 isea detailed sectional view taken throu' h sectional view one of the latches for securingthe lid on t e inner bowl. Referrin to for a. detai ed description of our invention,

the-numeral 1 designates an extractor of a conventional type.- This. extractor comprises an outer casing 2 which is mounted on'legs 3-, 3 secured to a base t. (See Figures 1 e 5 is rotated by a shafbfi,

c Mounted fortrotation within the outer casmg 2 is a perforated bowl or receptacle 5 adapted to receive through. its open top, garmentsor other articles from which an in: flammable cleaning liquid, such as gasoline, is removed by centrifugal force. The bowl pulley 7, and belt 8 leading to a source of powernotshowm For the purpose of 4 electricity that may fOI'm'iDthB revolvingbowl 5 through the frictional contact of its fabric contents with its walls and other parts, we provide for the opening in the top oi: the rece tacle 5 a lid 9.to which a collector 10 is oosely secured. v V

That the lid 9 may attached to the top portion of the bowl 5, said lid is iormed around its outer circular :edge with downwardly directed latch reof our invention the lid 9 may be easily the accompanying drawings f conducting member 23. conducting-any static be quickly and firmly Ete'ammessmsflsremm a nd 1 a $1 a latch member 12 proes inthe IQgS d vine; seasons. 11. sacn trsj tec j ects for movement under "the ad'acent circular edge of thebowl'to latch t e lid' 9 to the latter. Each latch 'member has an upturned finger grip end 13 within the tubular portion of the projection 11, for convenient to the finger a of the operator and by access which it. may be drawn outwardly, to release the lid from the bowl, against the tension of v a s ring '14. This spring surrounds the late member 12 between a dist r15 securedagainst a pin 16 carried by it, and the inner leg of'the n portion of the projection 11. ee Figures 2 and,4=)-. By these latches 12 attached to, and removed from, the perforated bowl 5.

For the purpose of tricity' from the conducting'static elecrevolving bowie," the collector 10 is secured to the lid 9 as follows.v

Formed in the middle portion of said lid is a hole which receives a-flanged bushing 17. Mounted fora free rotar bushing 17 is the reduce lector 10. To the is secured a retainin disc 19 toloosely hold the collector. in the ushing 17 (See Figures 1 and 3). c

The collector 10Ftapers inwardly to" its end '18 of the col- ;upper threaded end 20 which receives a,

threaded cap 21. By means of this, cap, which covers a head 22 onthe lower end of a conducting member 23, the latter is connected to the collector 10. (See Figure 3). a The .conducting'member its upper end in a reduced portion 24 formed with an axial hole'in which one end of a conducting wire 25 -insulated rwire is coiled wire casing 27 that is fitted at its lower end over the reduced portion of the (See Figure 3). The flexible conductor just described is connected. to the outer casing 2 at the point 28 in Figure 2,'to conduct thereto, away from the inflammable liquid, any static electricity formed in the bowl 5 when the latter is rotated. Y We donot wish to be limited to the details of construction herein shown and described, and any changes or modifications -may be made therein within the scope or the subjoined claimsc bottom of the latter there movement in said 23 terminates at 1s soldered. This wire is covered with insulation material 26, and the in turn surrounded by a tor connected to said Having described our invention, we claim:

1. An apparatus of the type described, comprising an outer casing, a receptacle free to revolve therein for the extraction of an inflammable liquid from articles which it contains, one closed end of said receptacle formed with an axial hole, an electric collector free to turn in said hole, and an electric conductor connected to said collector.

2. An apparatus of the type described, comprising an outer casing, a receptacle rotatable therein for the extraction of an inflammable liquid from the articles which it contains, a lid for said receptacle formed with a central hole, an electric collector free to turn in said hole and an electric conduccollector. 3. An apparatus of the type described, comprising an outer casing, a receptacle rotatable therein for the extraction of an inflammable liquid from the articles which it contains, a lid for said receptacle and formed with a central hole, a flanged bushing therein, a collector member having a reduced portion free to turn in said bushing, a retaining disc secured to said collector member below the lid, and an electric conductor connected to said collector member.

4;. An apparatus of the type described, comprising an outer casing, a receptacle rotatable therein for the extraction of an inflammable liquid from the articles which it contains, a lid for said receptacle formed with a central hole, an electric collector free to turn in said hole, and a flexible conductor removably connected between said collector and the outer casing for the purpose specified.

In testimony whereof We have hereunto set our hands this 10 day of Ma 1927.

JOSEPH Z MERMAN. FRIEDRICK A. GLOCK. 

